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Questions tagged [diy]

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2 votes
4 answers
647 views

Can emergency blanket material be used for making a homemade solar filter for a digital camera?

Can emergency blanket material be used for making a homemade solar filter for use with a digital camera? It seems to be aluminized Mylar.
Geremia's user avatar
  • 219
6 votes
3 answers
531 views

Is it practical to build a DIY spectroscope that can clearly show absorption lines in a spectra of the Sun?

Is it practical to build a DIY spectroscope that can clearly show absorption lines from the Sun? "Practical" means that the kit can be made at home or relatively cheaply bought (less than £...
Slarty's user avatar
  • 359
2 votes
0 answers
290 views

Is it possible to make (or buy kit) DIY portable radio telescope that I can place on the balcony like optical telescope?

I want to have a small radio telescope to use on balcony instead of optical when sky is cloudy (it is very often). Is it possible? What objects can be observed by that telescope? Is it possible to use ...
Robotex's user avatar
  • 256
5 votes
1 answer
562 views

How bright is the Crab Pulsar's 30 Hz modulation in visible light? What color is it?

This answer to Has great eyesight been necessary for astronomers? mentions Astronomer Jocelyn Bell Burnell's recounting of a likely first visual observation of a pulsar. This can be found for example ...
uhoh's user avatar
  • 30.5k
3 votes
0 answers
217 views

Combining lenses from two telescopes to build a more powerful one?

I have two Galileo 700mm x 60mm Astro/Terrestrial Refractor Telescopes. Can I take the lenses out and make one powerful telescope, something like an optical series circuit?
marc Katz's user avatar
3 votes
1 answer
4k views

Challenges when trying to build a telescope using two lenses

I have some lenses - a 10 cm and 7 cm convex lense and a 4 cm and 1 cm concave lenses. I am trying to make a telescope by combining one of convex and concave lenses, but I am struggeling to do so. The ...
user123's user avatar
  • 193
8 votes
1 answer
990 views

Which type of telescope should I make?

I am not very much interested in observational physics but I just like to look at the night sky. It gives me a lot of inspiration. So, i was thinking about making a telescope for basic observations. I ...
Yashbhatt's user avatar
  • 738